Abstract
The physiological response and performance were investigated and evaluated for 18 Kentucky bluegrass turfgrasses by exposing them to simultaneous drought and heat stress through withholding irrigation for 21 d until complete leaf wilting of the plants.During the stress period,turf quality(TQ),relative water content(RWC),electrolyte leakage(EL),leaf wilting(LW),superoxide dismutase(SOD),catalase(CAT) and malondialdehyde(MDA) were determined in 3-d intervals.In summary,simultaneous drought and heat stresses induced oxidative injury in all cultivars,as demonstrated by the reduction in antioxidant enzymes and increase in lipid peroxidation.Meanwhile it caused TQ and RWC to decline,while EL and LW to increase with proceeding of the treatment.Through the hierarchical cluster analysis,Midnight,Rugby II,Nublue,Impact,Bluechip,and Park were in the high resistance group;Ronde,Conni,Blue moon,Merit,Odyssey,Nassau,and Nuglade were in the moderate resistance group;Award,Prize, Newport,Celle,and Campus were in the low resistance group.These results would facilitate the selection of drought and heat resistant turfgrasses for drought areas.
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Claims 9
Claim · model-written summary
Simultaneous drought and heat stress induced oxidative injury in all cultivars.
- Taxon
- Kentucky Bluegrass
.jpg?width=60)
Poa pratensist0 - Treatment
- simultaneous drought and heat stressese1
- Outcome
- oxidative injurye1
- Direction
- inducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e1“simultaneous drought and heat stresses induced oxidative injury in all cultivars,as demonstrated by the reduction in antioxidant enzymes and increase in lipid peroxidation”
Claim · model-written summary
Simultaneous drought and heat stress reduced antioxidant enzymes.
- Taxon
- Kentucky BluegrassPoa pratensist0
- Treatment
- simultaneous drought and heat stressese1
- Outcome
- antioxidant enzymese1
- Direction
- reductione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e1“simultaneous drought and heat stresses induced oxidative injury in all cultivars,as demonstrated by the reduction in antioxidant enzymes and increase in lipid peroxidation”
Claim · model-written summary
Simultaneous drought and heat stress increased lipid peroxidation.
- Taxon
- Kentucky BluegrassPoa pratensist0
- Treatment
- simultaneous drought and heat stressese1
- Outcome
- lipid peroxidatione1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e1“simultaneous drought and heat stresses induced oxidative injury in all cultivars,as demonstrated by the reduction in antioxidant enzymes and increase in lipid peroxidation”
Claim · model-written summary
Simultaneous drought and heat stress reduced turf quality and relative water content.
- Taxon
- Kentucky BluegrassPoa pratensist0
- Treatment
- simultaneous drought and heat stresse0
- Outcome
- TQ and RWCe2
- Direction
- declinee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e0“by exposing them to simultaneous drought and heat stress through withholding irrigation”
e2“Meanwhile it caused TQ and RWC to decline,while EL and LW to increase”
Claim · model-written summary
Simultaneous drought and heat stress increased electrolyte leakage and leaf wilting.
- Taxon
- Kentucky BluegrassPoa pratensist0
- Treatment
- simultaneous drought and heat stresse0
- Outcome
- EL and LWe2
- Direction
- increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e0“by exposing them to simultaneous drought and heat stress through withholding irrigation”
e2“Meanwhile it caused TQ and RWC to decline,while EL and LW to increase”
Claim · model-written summary
Midnight, Rugby II, Nublue, Impact, Bluechip and Park formed the high resistance group.
- Taxon
- Kentucky BluegrassPoa pratensist0
- Material
- Midnight,Rugby II,Nublue,Impact,Bluechip,and Parke3
- Outcome
- resistance groupe3
- Qualifier
- high resistance groupe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e3“Midnight,Rugby II,Nublue,Impact,Bluechip,and Park were in the high resistance group”
Claim · model-written summary
Ronde, Conni, Blue moon, Merit, Odyssey, Nassau and Nuglade formed the moderate resistance group.
- Taxon
- Kentucky BluegrassPoa pratensist0
- Material
- Ronde,Conni,Blue moon,Merit,Odyssey,Nassau,and Nugladee4
- Outcome
- resistance groupe4
- Qualifier
- moderate resistance groupe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e4“Ronde,Conni,Blue moon,Merit,Odyssey,Nassau,and Nuglade were in the moderate resistance group”
Claim · model-written summary
Award, Prize, Newport, Celle and Campus formed the low resistance group.
- Taxon
- Kentucky BluegrassPoa pratensist0
- Material
- Award,Prize, Newport,Celle,and Campuse5
- Outcome
- resistance groupe5
- Qualifier
- low resistance groupe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e5“Award,Prize, Newport,Celle,and Campus were in the low resistance group”
Claim · model-written summary
The results would facilitate selecting drought and heat resistant turfgrasses for drought areas.
- Taxon
- Kentucky BluegrassPoa pratensist0
- Outcome
- selection of drought and heat resistant turfgrassese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“18 Kentucky Bluegrass Turfgrasses under Drought and Heat Stress”
e6“These results would facilitate the selection of drought and heat resistant turfgrasses for drought areas”
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See all 11 papers →heat · physiology: oxidative · Poa pratensis (Kentucky bluegrass)Results agree
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heat · quality: general · Poa pratensis (Kentucky bluegrass)Results agree
1 paper in the same direction as this paper
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heat · physiology: antioxidant enzymes · Poa pratensis (Kentucky bluegrass)Results agree
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- no effect
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.